This worksheet is very helpful in having students examine the most common types of chemical bonds (covalent, polar covalent, ionic and hydrogen bonding). I use it for a biology lesson right before I start organic chemistry to ensure students have an understanding of the basic types of bonds common to our subject. I have also included an answer key. This worksheet can be utilized in many ways, as a preview, note taking guide, review or exit slip. It also meets many of the state standards and Marzano learning framework criteria to ensure that your students are engaged at a high cognitive level.